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Finding the Fourth Proportional to 91,080, 136,526.16 and 34,907.04

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Solution

The fourth proportional to 91,080, 136,526.16 and 34,907.04 is: 52,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,080 : 136,526.16 = 34,907.04 : x
  2. Step 2: Convert to fraction form
    91,080/136,526.16 = 34,907.04/x
  3. Step 3: Cross multiply
    91,080x = 136,526.16 × 34,907.04
  4. Step 4: Simplify right side
    91,080x = 4,765,724,128.17
  5. Step 5: Solve for x
    x = 4,765,724,128.17/91,080
  6. Step 6: Final answer
    x = 52,324.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.